ALTERNATE USE OF DIFFERENT RICA PROBIOTIC BACTERIA ON SURVIVAL RATE AND PRODUCTION OF CULTURED TIGER SHRIMP IN SEMI-INTENSIVE PONDS
Abstract: Tiger shrimp
diseases have occured in Indonesian shrimp ponds for more than two decades. In
order to overcome this problem, five types of the RICA probiotic bacteria were
tested in nine 250 m2 semi-intensive ponds of the Research and Development
Institute for Coastal Aquaculture Marana Station. In the present study three
different alternate use of the RICA probiotics were tested for tiger shrimp
culture incompletely randomized design experiment. There were three treatments
here namely: A) alternate use of probiotic bacteria RICA-1, RICA-2, RICA-3; B)
alternate use of probiotic bacteria RICA-4, RICA-5, RICA-3, and C) control
(without probiotic bacteria); each treatment were applied in three
replications. The results showed that survival rate and production of tiger
shrimp in treatment A (55.8% and 14.9 kg/pond) and B (52.7% and 16.7 kg/pond)
were significantly better (P<0.05) than those of in control ponds (37.4% and
10.9 kg/pond). However, survival rate and production of tiger shrimp between
treatment A and B were not significantly different (P>0.05). The average
total bacteria population in the cultured water media of treatment A (4.32 x
104 cfu/mL) and B (5.18 x 104 cfu/mL) were relatively higher than control (1.46
x 104 cfu/mL). However the percentage ratio of Vibrio spp. and total bacteria
population in the cultured water media of treatment A and B were relatively
lower than control. The lower survival rate and production of tiger shrimp in
control (C) compared to probiotic treatments (A and B) were not just affected
by the increase of Vibrio spp. ratio, but also affected by the increase of
total organic matter and nitrite concentrations in the control ponds that were
relatively higher than treatment A and B.
Keywords: RICA probiotic; alternate
use; tiger shrimp; semi-intensive
Author: Muharijadi
Atmomarsono, Nurbaya
Journal Code: jpperikanangg140053
